Difference between revisions of "QGIS/C2/Downloading-GIS-Datasets/English"

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{|border=1
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{| style="border-spacing:0;"
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||'''Visual Cue'''
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! <center>Visual Cue</center>
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||'''Narration'''
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! <center>Narration</center>
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|-
+
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| | '''Slide Number 1'''
+
  
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'''Title Slide'''
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|-
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|| Welcome to this tutorial on '''Downloading GIS Datasets'''  
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 1'''
  
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|-  
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'''Title Slide'''
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| | '''Slide Number 2'''  
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Welcome to this tutorial on '''Downloading GIS Datasets'''.
  
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'''Learning Objectives'''  
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|-
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|| In this tutorial, we will learn
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 2'''
  
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* About GIS
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'''Learning Objectives'''
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* Download '''vector dataset''' from '''Natural Earth Data''' website.
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| In this tutorial, we will learn
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* View '''vector data''' in QGIS.
+
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* Download '''raster dataset''' from Bhuvan website.
+
−
* View '''raster data''' in QGIS.  
+
  
 +
* About '''GIS'''
 +
* Download '''vector dataset''' from '''Natural Earth Data''' website.
 +
* View '''vector data''' in '''QGIS'''.
 +
* Download '''raster dataset''' from '''Bhuvan''' website.
 +
* View '''raster data''' in '''QGIS'''.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 3'''
  
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|-
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'''System Requirement'''
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| | '''Slide Number 3'''  
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| To record this tutorial, I am using
  
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'''System Requirement'''  
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* '''Ubuntu Linux''' OS version 14.04
−
|| To record this tutorial, I am using,
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* '''QGIS''' version 2.18
 +
* '''Mozilla Firefox''' browser version 54.0 and
 +
* A working '''Internet''' connection
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 4'''
  
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* '''Ubuntu Linux''' OS version 16.04
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'''Pre-requisites'''
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* '''QGIS''' version 2.18
+
−
* '''Mozilla Firefox''' browser version 54.0
+
−
* Working internet connection.
+
  
 +
https://www.nationalgeographic.org/encyclopedia/geographic-information-system-gis/
  
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| To follow this tutorial, knowledge about '''GIS''' is desired, but not essential.
  
−
|-
 
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| | '''Slide Number 4'''
 
  
−
'''Pre-requisites'''  
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For more information about '''GIS''', please visit the given link.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 5'''
  
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'''https://www.nationalgeographic.org/encyclopedia/geographic-information-system-gis/'''  
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'''Datasets'''
−
|| To follow this tutorial,
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| All the '''datasets''' required for this tutorial are available in '''Code files''' link.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 6'''
  
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Knowledge about '''GIS''' is desired, but not essential.  
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'''About GIS'''
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| About '''GIS'''
  
 +
* '''GIS''' stands for '''Geographic Information System.'''
 +
* It is a system for capturing, storing, querying, analyzing and displaying '''geospatial data'''.
  
−
For more information about '''GIS''', please visit the given link.
+
|-
−
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 7'''
  
 +
'''Spatial Data'''
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| '''Spatial Data''' is of two types- '''Vector Data '''and''' Raster Data'''.
  
  
−
|-
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Let us download '''vector dataset''' from '''Internet'''.
−
| | '''Slide Number 5'''  
+
  
−
'''Datasets'''  
+
|-
−
|| All the datasets required for this tutorial are available in Code files link.
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Open Firefox/Chrome web browser.'''
  
−
|-
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Type [http://www.naturalearthdata.com/ www.naturalearthdata.com]
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| | '''Slide Number 6'''
+
  
−
'''About GIS'''
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Open any web browser.
−
|| About '''GIS''',
+
  
  
−
* '''GIS''' stands for '''Geographic Information System.'''
+
In the '''address bar''', type http://www.naturalearthdata.com
  
−
* It is a system for capturing, storing, querying, analyzing and displaying geospatial data.
 
  
 +
Press '''Enter'''.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on '''Downloads''' link
  
−
|-
 
−
| | '''Slide Number 7'''
 
  
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'''Spatial Data'''
 
−
|| '''Spatial Data''' is of two types, '''Vector Data '''and''' Raster Data'''.
 
  
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| '''Natural Earth data''' website opens.
  
−
Let us download vector dataset from internet.
 
  
−
|-
+
Click on '''Downloads''' link.
−
| | '''Open Firefox/Chrome web browser.'''  
+
  
−
Type [http://www.naturalearthdata.com/ www.naturalearthdata.com]
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"|
  
 +
Scroll down
  
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| '''Downloads''' page opens.
  
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|| Open any web browser
 
−
 
−
 
−
<u>In the address bar, t</u>ype [http://www.naturalearthdata.com/ www.naturalearthdata.com].</u>
 
−
 
−
 
−
Press Enter.
 
−
 
−
|-
 
−
| | Click on '''Downloads''' tab
 
−
 
−
 
−
 
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|| Natural Earth Data website opens.
 
−
 
−
 
−
Click on '''Downloads''' link.
 
−
 
−
Downloads page opens.
 
  
 
Scroll down the page.
 
Scroll down the page.
  
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|-  
+
|-
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| | Point towards the scales.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point towards the '''scales'''.
  
−
Point towards the details.  
+
Point towards the details.
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|| You can see three different scales of datasets.  
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| You can see three different '''scales''' of '''dataset'''.
  
  
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Large, medium and small.  
+
'''Large, Medium''' and '''Small'''.
  
−
|-  
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|-
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| | Click on '''Cultural '''button, under '''Large scale data.'''  
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| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Under '''Large scale data''' >> Click on '''Cultural '''button
  
  
−
Scroll down  
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Scroll down
−
|| Let us download a dataset for demostration.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Let us download a '''dataset''' for demostration.
  
  
−
Under '''Large scale data''', click on '''Cultural''' button.  
+
Under '''Large scale data''', click on '''Cultural''' button.
  
−
|-  
+
|-
−
| | Scroll webpage.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Scroll down the webpage.
−
|| A webpage opens.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| A webpage opens.
  
  
−
Scroll down the page.  
+
Scroll down the page.
−
 
+
−
 
+
−
Here, we can see various available datasets.
+
−
 
+
−
|-
+
−
| | Click on '''Download countries''' tab.
+
−
|| Let us download the country administration boundary files.
+
−
 
+
−
 
+
−
Under heading''' Admin 0 – Countries,'''
+
−
 
+
−
 
+
−
Click on''' Download countries''' button.
+
−
 
+
−
|-
+
−
| | Point to dilog box.
+
−
 
+
−
+
−
Selct '''Save''' file option.
+
−
 
+
−
 
+
−
Click on '''OK'''.
+
−
|| A dialog-box opens which prompts you to save the file.
+
−
 
+
−
 
+
−
Selct '''Save''' file option.
+
−
 
+
−
 
+
−
Click on '''OK''' button.
+
−
 
+
−
|-
+
−
| | Open Downloads folder and point the zip file.
+
−
|| The process of download begins.
+
−
 
+
−
 
+
−
On my system, zip file downloads to the downloads folder.
+
−
 
+
−
|-
+
−
| | Right-click to extract the contents.
+
−
|| Extract the contents of the zip file.
+
−
 
+
−
 
+
−
Right-click and select '''Extract Here''' option.
+
−
 
+
−
|-
+
−
| | Double-click to open the folder
+
−
 
+
−
Point to all the files.
+
−
|| Double-click on the extracted folder.
+
−
 
+
−
 
+
−
Here we see many files with different file extensions.
+
−
 
+
−
 
+
−
This is a vector type of dataset.
+
−
 
+
−
|-
+
−
| | '''Slide Number 8'''
+
−
 
+
−
'''Spatial Data-Vector Data'''
+
−
|| About Vector data.
+
−
 
+
−
 
+
−
 
+
−
* '''Discrete features '''such as''' '''wells, roads and land-use types is '''Vector Data.'''<br/>
+
−
 
+
−
* Vector data can be of point, line or polygon format.
+
−
 
+
−
 
+
−
+
−
|-
+
−
| | Cursor on slide.
+
−
|| Let us open '''QGIS '''and view one of the downloaded files.
+
−
 
+
−
|-
+
−
| | Double-click on QGIS icon.
+
−
 
+
−
Cursor on the interface.
+
−
|| Here, I have already opened QGIS interface.
+
−
 
+
−
|-
+
−
| | Click on layeron the menu bar.
+
−
 
+
−
Click on add layer
+
−
 
+
−
Click on add vector layer
+
−
 
+
−
 
+
−
 
+
−
|| Click on''' Layer menu''' on the menu bar.
+
−
 
+
−
 
+
−
From the menu options, select '''Add Layer.'''
+
−
 
+
−
 
+
−
From the sub-menu click on '''Add Vector Layer.'''
+
−
 
+
−
|-
+
−
| | Point to '''Add Vector Layer''' dialog-box .
+
−
 
+
−
 
+
−
 
+
−
|| '''Add Vector Layer''' dialog-box opens.
+
−
 
+
−
 
+
−
Select '''File''' as '''Source type.'''
+
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+
−
 
+
−
'''System '''as''' Encoding .'''
+
−
 
+
−
 
+
−
 
+
−
 
+
−
|-
+
−
| | Click on browse.
+
−
 
+
−
 
+
−
Locate the folder ne_10m_admin_0_countries.
+
−
 
+
−
 
+
−
 
+
−
|| Under '''Source''' heading, click on '''Browse '''button.
+
−
 
+
  
−
Navigate to the '''admin countries''' folder,
 
  
−
downloaded from the '''natural earth data''' website.  
+
Here, we can see various available '''datasets'''.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on '''Download countries''' tab.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Let us download the '''country administration boundary files'''.
  
  
 +
Under heading''' Admin zero hyphen Countries,''' click on''' Download countries''' button.
  
−
|-  
+
|-
−
| | From the folder, select the file, ne_10m_populated_countries.shp
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point to the dialog box.
  
  
−
Click''' Open'''  
+
Select '''Save''' file option.
  
  
 +
Click on '''OK''' button.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| A dialog-box opens, which prompts you to save the file.
  
−
|| From the contents of the folder, select the file with '''.shp''' extension.
 
  
 +
Select '''Save''' file option.
  
−
Click on '''Open '''button.
 
  
−
|-
+
Click on '''OK''' button.
−
| | Click Open in, '''Add vector layer''' dialog-box.  
+
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Open Downloads folder and point the zip file.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| The process of download begins.
  
−
Point to themap on canvas.
 
−
|| In the '''Add vector layer''' dialog-box, click on''' Open '''button.
 
  
 +
On my system, '''zip file''' downloads to the '''Downloads''' folder.
  
−
A world map opens on the canvas.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Right-click to extract the contents.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Extract the contents of the '''zip file'''.
  
  
 +
Right-click and select '''Extract Here''' option.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Double-click to open the folder
  
−
|-  
+
Point to all the files.
−
| | Click on '''Project''' in the menu bar.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Double-click on the extracted folder.
  
  
−
Scroll down click on '''Save'''.  
+
Here we see many files with different file extensions.
  
  
 +
This is a '''vector type''' of '''dataset'''.
  
−
|| Save the map.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 8'''
  
 +
'''Spatial Data-Vector Data'''
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| About '''Vector data'''.
  
−
Click on '''Project''' in the menu bar.  
+
* '''Discrete features '''such as wells, roads and land-use '''types''' is '''Vector Data.'''
 +
* '''Vector data''' can be of point, line or polygon format.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Cursor on slide.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Let us open '''QGIS '''and view one of the downloaded files.
  
−
Scroll down click on '''Save''' button.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Double-click on QGIS icon.
  
−
|-  
+
Cursor on the interface.
−
| | In the File name text box, type '''Map-1'''.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Here, I have already opened '''QGIS''' interface.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on '''layer''' on the '''menu bar'''.
  
−
Click on '''Save'''.  
+
Click on add '''layer'''.
  
 +
Click on add '''vector layer'''.
  
−
Point to '''Map-1.qgs''' on the desktop.
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Click on the''' Layer menu''' on the '''menu bar'''.
−
|| In the dialog-box name the file as '''Map-1'''.  
+
  
  
−
I will save it on the desktop.  
+
From the '''menu''' options, select '''Add Layer.'''
  
  
−
Click on '''Save '''button.  
+
From the '''sub-menu''', click on '''Add Vector Layer''' option.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point to '''Add Vector Layer''' dialog-box .
  
−
The map will be saved as '''Map-1.qgs''' on the desktop.
 
  
−
|-
 
−
| | '''Slide Number 9'''
 
  
−
'''Spatial Data - Raster Data'''  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| '''Add Vector Layer''' dialog-box opens.
−
|| About Raster Data.  
+
  
  
 +
Select '''File''' as '''Source type''' and '''System '''as''' Encoding.'''
  
−
* Continuous features''' '''that exist spatially betwen observations is '''Raster Data'''.<br/>
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on '''Browse'''.
  
−
* '''Raster data''' is made up of cells in row and column format.
 
  
 +
Locate the folder '''ne_10m_admin_0_countries'''.
  
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Under '''Source''' heading, click on '''Browse''' button.
  
−
|-
 
−
| | Cursor on slide
 
−
|| Let's download raster dataset from '''Bhuvan''' website.
 
  
−
|-
+
Navigate to the '''admin countries''' folder downloaded from the '''Natural Earth data''' website.
−
| | '''Slide Number 10'''  
+
  
−
'''Bhuvan Website Link'''  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| From the folder, select the file '''ne_10m_populated_countries.shp'''
  
  
−
'''http://bhuvan.nrsc.gov.in/data/download/index.php'''  
+
Click''' Open'''.
−
|| '''Bhuvan''' Platform was created by ISRO.  
+
  
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| From the contents of the folder, select the file with '''.shp''' extension.
  
−
The website hosts various data collected by Indian remote sensing satellites.
 
  
 +
Click on '''Open''' button.
  
−
Here is the link to download '''raster''' dataset from '''Bhuvan''' website.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click '''Open''' in '''Add vector laye'''r dialog-box.
  
−
|-
 
−
| | Show the Address bar.
 
−
|| Open the Bhuvan website link in any web browser.
 
  
−
'''Open Data Archive''' page opens.  
+
Point to themap on canvas.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| In the '''Add vector layer''' dialog-box, click on''' Open''' button.
  
−
|-
 
−
| | Point to''' Select Category'''>>''' Satellite/Sensor '''radio button.
 
−
|| On the left panel under '''Select Category''',
 
  
 +
A world map opens on the '''canvas'''.
  
−
select '''Satellite/Sensor''' option.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on '''Project''' in the '''menu bar'''.
  
−
|-
 
−
| | Select '''Resourcesat-1: LISS-3.'''
 
  
 +
Scroll down click on '''Save'''.
  
−
Point to the India map highlighted in yellow tiles.
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Save the map.
−
|| Under '''Select Subcategory '''drop down, choose '''Resourcesat-1: LISS-III '''option.  
+
  
  
−
Scroll down, under select area, choose '''Bounding Box''' .  
+
Click on '''Project''' in the '''menu bar'''.
  
  
−
Here, We have to enter the latitude and longitude of the location.  
+
Scroll down, click on '''Save''' button.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| In the '''File name''' text box, type '''Map-1'''.
  
  
 +
Click on '''Save'''.
  
−
|-
 
−
| | Cursor on '''Select Area''' panel, '''Bounding Box''' tab .
 
  
 +
Point to '''Map-1.qgs''' on the '''Desktop'''.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| In the dialog-box, name the file as '''Map hyphen 1'''.
  
  
−
|| Let us download data for '''Mumbai''' region.  
+
I will save it on the '''Desktop'''.  
  
  
−
Use google maps to find the latitude and longitude of a particular region.  
+
Click on '''Save''' button.
  
−
|-
 
−
| | Type Min longitude 72.75 E
 
  
−
Type Max longitude 73 E
+
The map will be saved as '''Map hyphen 1 dot qgs''' on the '''Desktop'''.
  
−
Type Min latitude 19 N
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 9'''
  
−
Type Max latitude 19.25 N
+
'''Spatial Data - Raster Data'''
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| About '''Raster Data'''.
  
−
Click select
+
* Continuous '''features''' that exist '''spatially''' between observations is '''Raster Data'''.
  
 +
* '''Raster data''' is made up of '''cells''' in '''row''' and '''column''' format.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Cursor on slide
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Let us download '''raster dataset''' from '''Bhuvan''' website.
  
−
|| For Mumbai region, enter the following data.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 10'''
  
 +
'''Bhuvan Website Link'''
  
−
Minimum Longitude 72.75
 
  
−
Maximum Longitude 73
+
'''http://bhuvan.nrsc.gov.in/data/download/index.php'''
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| '''Bhuvan Platform''' was created by '''ISRO'''.
  
−
Minimum Latitude 19
 
  
−
Maximum Latitude 19.25
+
The website hosts various '''data''' collected by Indian '''remote sensing satellites.'''
  
  
−
Click on '''Select ''' button.  
+
Here is the link to download '''raster dataset''' from '''Bhuvan''' website.
  
−
|-  
+
|-
−
| | Point to the highlighted tile.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Show the Address bar.
−
|| A tile over Mumbai will be highlighted.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Open the '''Bhuvan''' website link in any web browser.
  
−
|-
+
'''Open Data Archive''' page opens.
−
| | Click '''Next''' button.  
+
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point to''' Select Category'''>>''' Satellite/Sensor '''radio button.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| On the left panel under '''Select Category''', select '''Satellite/Sensor''' option.
  
−
Cursor on the list of Tiles.
+
|-
−
|| Click on '''Next '''button at the bottom of the page.
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Select '''Resourcesat-1: LISS-3.'''
  
  
−
A list of available '''Tiles''' opens.  
+
Point to the India map highlighted in yellow tiles.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Under '''Select Subcategory '''drop down, choose '''Resourcesat-1: LISS-III '''option.
  
−
|-
 
−
| | Point on '''Date of Pass''' column.
 
  
 +
Scroll down, under '''Select Area''', choose '''Bounding Box''' .
  
  
−
|| Select the most recent imagery by looking into the '''Date of Pass''' column.  
+
Here, we have to enter the latitude and longitude of the location.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Cursor on '''Select Area''' panel, '''Bounding Box''' tab .
  
−
'''24Dec15''' is the most recent out of the available datasets.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Let us download '''data''' for '''Mumbai''' region.
  
−
|-
 
−
| | Click on the check box.
 
  
 +
Use '''google maps''' to find the latitude and longitude of a particular region.
  
−
Click '''Download '''button.
+
|-
−
|| Click on the check box on this row under '''Selection for backlog'''.
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"|
 +
Type '''Min longitude 72.75 E'''
  
 +
Type '''Max longitude 73 E'''
  
−
Click on '''Download''' button on this row.
+
Type '''Min latitude 19 N'''
  
−
|-
+
Type '''Max latitude 19.25 N'''
−
| | Click on '''OK'''.
+
  
 +
Click '''select'''
  
−
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| For '''Mumbai''' region, enter the following '''data'''.
−
|| Bhuvan will prompt you to login, click on '''OK'''.  
+
  
  
−
A dialog-box opens.  
+
'''Min Longitude 72.75'''
  
−
|-
+
'''Max Longitude 73'''
−
| | Click on '''New User'''.
+
−
|| If it is your first time in using '''Bhuvan''',
+
  
 +
'''Min Latitude 19'''
  
−
click on '''New User''' link at the bottom of the page, to create a new account.
+
'''Max Latitude 19.25'''  
  
−
|-
 
−
| | Point to '''Account and Profile Information''' page.
 
  
 +
Click on '''Select '''button.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point to the highlighted tile.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| A '''tile''' over '''Mumbai''' will be highlighted.
  
−
|| '''Account and Profile Information''' page opens.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click '''Next''' button.
  
  
−
Fill in the appropriate details as shown.  
+
Cursor on the list of Tiles.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Click on '''Next '''button at the bottom of the page.
  
  
−
Click on '''Submit '''button'''.'''
+
A list of available '''Tiles''' opens.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point on '''Date of Pass''' column.
  
−
You will receive an email from the '''Bhuvan''' team with login Id and Password.
 
  
−
|-
 
−
| | Enter user name
 
  
−
Enter password
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Select the most recent imagery by looking into the '''Date of Pass column'''.
  
−
Click '''Login'''
 
  
 +
'''24Dec15''' is the most recent out of the available '''datasets'''.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on the check box.
  
−
|| I have already completed the registration process.
 
  
 +
Click '''Download '''button.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Click on the check box on this row under '''Selection for backlog.'''
  
−
So I will Click on '''Click here to login''' link.
 
  
 +
Click on '''Download''' button on this row.
  
−
I will enter '''Username''' and '''Password''' and click on '''Login '''button.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on '''OK'''.
  
−
|-  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| '''Bhuvan''' will prompt you to '''login'''.  
−
| | Click '''Download '''from the list of available Tiles against '''24Dec15'''
+
−
|| Again, in the tiles panel for '''24Dec15 '''row, Click on the '''Download''' button.  
+
  
−
|-
+
Click on '''OK''' button.
−
| | Point to download dialog-box.
+
−
|| Download of the zip file begins.  
+
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"|
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| A dialog-box opens.
  
−
A dialog-box opens which prompts you to save the file.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on '''New User'''.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| If it is your first time in using '''Bhuvan''', click on '''New User''' link to create a new '''account'''.
  
−
|-  
+
|-
−
| | Select '''Save File''' radio button >> click '''OK'''.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point to '''Account and Profile Information''' page.
  
  
−
Point to the files in the folder.
 
−
|| Select '''Save File''' option and click on '''OK '''button.
 
  
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| '''Account and Profile Information''' page opens.
  
−
The zip file will be saved to the downloads folder.
 
  
−
|-
+
Fill the appropriate details as shown.
−
| | Right-click on the folder and select '''Extract Here '''option.  
+
  
 +
Click on '''Submit''' button.
  
−
Double click on the extacted folder.
 
  
 +
You will receive an email from the '''Bhuvan''' team with '''Login Id''' and '''Password'''.
  
−
Point on the files in the folder.
+
|-
−
|| Extract the contents of the zip file.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Enter '''username'''
  
 +
Enter '''password'''
  
−
Double click on the extacted folder.
+
Click '''Login'''
  
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| I have already completed the registration process.
  
−
This folder has '''raster dataset''' for Mumbai region.
 
  
−
|-
+
So I will click on '''Click here to login''' link.
−
| | On the QGIS window,
+
  
−
Click on '''New icon '''on the tool bar.
 
−
|| Let us now open a file in '''QGIS'''.
 
  
 +
I will enter '''Username''' and '''Password''' and click on '''Login''' button.
  
−
Open a new window.  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click '''Download '''from the list of available Tiles against '''24Dec15'''
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Again, in the '''tiles panel''' for '''24Dec15 row''', click on the '''Download''' button.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point to download dialog-box.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Download of the '''zip file''' begins.
  
−
Click on '''New icon''' at the top-left corner on the tool bar.
 
  
 +
A dialog-box opens, which prompts you to save the file.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Select '''Save File''' radio button >> click '''OK'''.
  
  
−
|-  
+
Point to the files in the folder.
−
| | Click on''' Layer>> Add Layer>>Add Raster Layer'''  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Select '''Save File''' option and click on '''OK''' button.
−
|| Click on''' Layer''' on the menu bar.  
+
  
  
−
From the menu options, select '''Add Layer.'''  
+
The '''zip file''' will be saved to the '''Downloads''' folder.
−
+
  
−
From the sub-menu click on '''Add Raster Layer option.'''  
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Right-click on the folder and select '''Extract Here '''option.
  
−
|-
 
−
| | '''Open GDL Supported Raster Data Source''' dialog-box opens.
 
  
 +
Double click on the extacted folder.
  
−
Navigate to the folder
 
  
−
'''l3e43a1624dec15'''
+
Point on the files in the folder.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Extract the contents of the zip file.
  
  
−
Select the file,''' L3-NE43A16-094-059-24Dec15-BAND2.tif'''
+
Double click on the extacted folder.
  
  
−
Click on '''Open.'''  
+
This folder has '''raster dataset''' for '''Mumbai''' region.
−
|| '''A '''dialog-box opens.  
+
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| On the QGIS window,
  
−
Navigate to the folder, we had downloded from '''Bhuvan''' website.  
+
Click on '''New icon '''on the tool bar.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Let us now open a file in '''QGIS'''.
  
  
−
Select the file, '''24December15-BAND2.tif'''
+
Open a new window.
  
  
−
Click on '''Open'''.  
+
Click on '''New icon''' in the top-left corner on the '''tool bar'''.
  
−
|-  
+
|-
−
| | Point to the image on '''QGIS''' window.
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Click on''' Layer>> Add Layer>>Add Raster Layer'''
−
|| On '''QGIS''' canvas, you will see the '''raster''' map of Mumbai region.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Click on''' Layer''' on the '''menu bar'''.
  
  
 +
From the '''menu''' options, select '''Add Layer.'''
  
  
−
|-  
+
From the '''sub-menu,''' click on '''Add Raster Layer option.'''
−
| | '''Slide Number 11'''  
+
  
−
Summary
+
|-
−
|| Let's summarize.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Open GDL Supported Raster Data Source''' dialog-box opens.
  
−
In this tutorial we have learnt,
 
  
−
* About GIS
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| A dialog-box opens.
−
* Downloaded vector data from Natural Earth data website
+
−
* Viewed the vector dataset in QGIS.  
+
−
* Downloaded raster data from Bhuvan website
+
−
* Viewed the raster dataset in QGIS.  
+
  
  
 +
Navigate to the folder we had downloaded from '''Bhuvan''' website.
  
−
|-  
+
|-
−
| | '''Slide Number 12'''  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Navigate to the folder '''l3e43a1624dec15'''
  
−
Assignment 1
 
−
|| For the assignment,
 
  
−
From '''Natural Earth Data''' website,
+
Select the file,''' L3-NE43A16-094-059-24Dec15-BAND2.tif'''
  
  
−
download, '''Medium Scale,''' '''Physical data '''for Rivers and Lakes''' '''  
+
Click on '''Open.'''
  
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Select the file '''24December15 hyphen BAND2 dot tif'''
  
  
 +
Click on '''Open''' button.
  
−
|-  
+
|-
−
| | '''Slide Number 13'''  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| Point to the image on '''QGIS''' window.
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| On '''QGIS canvas''', you will see the '''raster''' map of '''Mumbai''' region.
  
−
'''Assignment 2'''  
+
|-
−
||
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 11'''
−
* Another popular website to download GIS data is Openstreetmap data website.<br/>
+
  
−
* Explore Openstreetmap data website
+
Summary
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| Let's summarize.
  
−
http://openstreetmapdata.com/
+
In this tutorial we have learnt,
  
 +
* About '''GIS'''
 +
* Downloaded '''vector data''' from '''Natural Earth dataset'''
 +
* Viewed the '''vector dataset''' in '''QGIS'''.
 +
* Downloaded '''raster data''' from '''Bhuvan''' website
 +
* Viewed the '''raster dataset''' in '''QGIS'''.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 12'''
  
 +
Assignment 1
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| For the assignment-
  
−
|-
+
*From '''Natural Earth Data''' website, download '''Medium Scale,''' '''Physical data '''for '''Rivers and Lakes'''  
−
| | '''Slide Number 14'''  
+
  
−
'''About Spoken Tutorial project'''  
+
|-
−
|| * The video at the following link summarizes the Spoken Tutorial project.
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 13'''
−
* Please download and watch it.
+
  
 +
'''Assignment 2'''
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"|
 +
*Another popular website to download '''GIS data''' is '''Openstreetmap data''' website.
  
 +
* Explore '''Openstreetmap data''' website http://openstreetmapdata.com/
  
−
|-  
+
|-
−
| | '''Slide number 15'''  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 14'''
  
−
'''Spoken Tutorial workshops'''  
+
'''About Spoken Tutorial project'''
−
|| The '''Spoken Tutorial Project '''team conducts workshops and gives certificates.  
+
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"|  
 +
* The video at the following link summarizes the Spoken Tutorial project.
 +
* Please download and watch it.
  
 +
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide number 15'''
  
−
For more details, please write to us.  
+
'''Spoken Tutorial workshops'''
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0.097cm;"| The '''Spoken Tutorial Project '''team conducts workshops and gives certificates.
  
−
|-
 
−
| | '''Slide Number 16'''
 
  
−
'''Forum for specific questions:'''
+
For more details, please write to us.
  
−
Do you have questions in THIS Spoken Tutorial?
+
|-
 +
| style="background-color:#ffffff;border-top:none;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide Number 16:'''
  
−
Please visit this site
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Revision as of 08:26, 13 July 2018

Visual Cue
Narration
Slide Number 1

Title Slide

Welcome to this tutorial on Downloading GIS Datasets.
Slide Number 2

Learning Objectives

In this tutorial, we will learn
  • About GIS
  • Download vector dataset from Natural Earth Data website.
  • View vector data in QGIS.
  • Download raster dataset from Bhuvan website.
  • View raster data in QGIS.
Slide Number 3

System Requirement

To record this tutorial, I am using
  • Ubuntu Linux OS version 14.04
  • QGIS version 2.18
  • Mozilla Firefox browser version 54.0 and
  • A working Internet connection
Slide Number 4

Pre-requisites

https://www.nationalgeographic.org/encyclopedia/geographic-information-system-gis/

To follow this tutorial, knowledge about GIS is desired, but not essential.


For more information about GIS, please visit the given link.

Slide Number 5

Datasets

All the datasets required for this tutorial are available in Code files link.
Slide Number 6

About GIS

About GIS
  • GIS stands for Geographic Information System.
  • It is a system for capturing, storing, querying, analyzing and displaying geospatial data.
Slide Number 7

Spatial Data

Spatial Data is of two types- Vector Data and Raster Data.


Let us download vector dataset from Internet.

Open Firefox/Chrome web browser.

Type www.naturalearthdata.com

Open any web browser.


In the address bar, type http://www.naturalearthdata.com


Press Enter.

Click on Downloads link


Natural Earth data website opens.


Click on Downloads link.

Scroll down

Downloads page opens.


Scroll down the page.

Point towards the scales.

Point towards the details.

You can see three different scales of dataset.


Large, Medium and Small.

Under Large scale data >> Click on Cultural button


Scroll down

Let us download a dataset for demostration.


Under Large scale data, click on Cultural button.

Scroll down the webpage. A webpage opens.


Scroll down the page.


Here, we can see various available datasets.

Click on Download countries tab. Let us download the country administration boundary files.


Under heading Admin zero hyphen Countries, click on Download countries button.

Point to the dialog box.


Select Save file option.


Click on OK button.

A dialog-box opens, which prompts you to save the file.


Select Save file option.


Click on OK button.

Open Downloads folder and point the zip file. The process of download begins.


On my system, zip file downloads to the Downloads folder.

Right-click to extract the contents. Extract the contents of the zip file.


Right-click and select Extract Here option.

Double-click to open the folder

Point to all the files.

Double-click on the extracted folder.


Here we see many files with different file extensions.


This is a vector type of dataset.

Slide Number 8

Spatial Data-Vector Data

About Vector data.
  • Discrete features such as wells, roads and land-use types is Vector Data.
  • Vector data can be of point, line or polygon format.
Cursor on slide. Let us open QGIS and view one of the downloaded files.
Double-click on QGIS icon.

Cursor on the interface.

Here, I have already opened QGIS interface.
Click on layer on the menu bar.

Click on add layer.

Click on add vector layer.

Click on the Layer menu on the menu bar.


From the menu options, select Add Layer.


From the sub-menu, click on Add Vector Layer option.

Point to Add Vector Layer dialog-box .


Add Vector Layer dialog-box opens.


Select File as Source type and System as Encoding.

Click on Browse.


Locate the folder ne_10m_admin_0_countries.

Under Source heading, click on Browse button.


Navigate to the admin countries folder downloaded from the Natural Earth data website.

From the folder, select the file ne_10m_populated_countries.shp


Click Open.

From the contents of the folder, select the file with .shp extension.


Click on Open button.

Click Open in Add vector layer dialog-box.


Point to themap on canvas.

In the Add vector layer dialog-box, click on Open button.


A world map opens on the canvas.

Click on Project in the menu bar.


Scroll down click on Save.

Save the map.


Click on Project in the menu bar.


Scroll down, click on Save button.

In the File name text box, type Map-1.


Click on Save.


Point to Map-1.qgs on the Desktop.

In the dialog-box, name the file as Map hyphen 1.


I will save it on the Desktop.


Click on Save button.


The map will be saved as Map hyphen 1 dot qgs on the Desktop.

Slide Number 9

Spatial Data - Raster Data

About Raster Data.
  • Continuous features that exist spatially between observations is Raster Data.
  • Raster data is made up of cells in row and column format.
Cursor on slide Let us download raster dataset from Bhuvan website.
Slide Number 10

Bhuvan Website Link


http://bhuvan.nrsc.gov.in/data/download/index.php

Bhuvan Platform was created by ISRO.


The website hosts various data collected by Indian remote sensing satellites.


Here is the link to download raster dataset from Bhuvan website.

Show the Address bar. Open the Bhuvan website link in any web browser.

Open Data Archive page opens.

Point to Select Category>> Satellite/Sensor radio button. On the left panel under Select Category, select Satellite/Sensor option.
Select Resourcesat-1: LISS-3.


Point to the India map highlighted in yellow tiles.

Under Select Subcategory drop down, choose Resourcesat-1: LISS-III option.


Scroll down, under Select Area, choose Bounding Box .


Here, we have to enter the latitude and longitude of the location.

Cursor on Select Area panel, Bounding Box tab . Let us download data for Mumbai region.


Use google maps to find the latitude and longitude of a particular region.

Type Min longitude 72.75 E

Type Max longitude 73 E

Type Min latitude 19 N

Type Max latitude 19.25 N

Click select

For Mumbai region, enter the following data.


Min Longitude 72.75

Max Longitude 73

Min Latitude 19

Max Latitude 19.25


Click on Select button.

Point to the highlighted tile. A tile over Mumbai will be highlighted.
Click Next button.


Cursor on the list of Tiles.

Click on Next button at the bottom of the page.


A list of available Tiles opens.

Point on Date of Pass column.


Select the most recent imagery by looking into the Date of Pass column.


24Dec15 is the most recent out of the available datasets.

Click on the check box.


Click Download button.

Click on the check box on this row under Selection for backlog.


Click on Download button on this row.

Click on OK. Bhuvan will prompt you to login.

Click on OK button.

A dialog-box opens.
Click on New User. If it is your first time in using Bhuvan, click on New User link to create a new account.
Point to Account and Profile Information page.


Account and Profile Information page opens.


Fill the appropriate details as shown.

Click on Submit button.


You will receive an email from the Bhuvan team with Login Id and Password.

Enter username

Enter password

Click Login

I have already completed the registration process.


So I will click on Click here to login link.


I will enter Username and Password and click on Login button.

Click Download from the list of available Tiles against 24Dec15 Again, in the tiles panel for 24Dec15 row, click on the Download button.
Point to download dialog-box. Download of the zip file begins.


A dialog-box opens, which prompts you to save the file.

Select Save File radio button >> click OK.


Point to the files in the folder.

Select Save File option and click on OK button.


The zip file will be saved to the Downloads folder.

Right-click on the folder and select Extract Here option.


Double click on the extacted folder.


Point on the files in the folder.

Extract the contents of the zip file.


Double click on the extacted folder.


This folder has raster dataset for Mumbai region.

On the QGIS window,

Click on New icon on the tool bar.

Let us now open a file in QGIS.


Open a new window.


Click on New icon in the top-left corner on the tool bar.

Click on Layer>> Add Layer>>Add Raster Layer Click on Layer on the menu bar.


From the menu options, select Add Layer.


From the sub-menu, click on Add Raster Layer option.

Open GDL Supported Raster Data Source dialog-box opens.


A dialog-box opens.


Navigate to the folder we had downloaded from Bhuvan website.

Navigate to the folder l3e43a1624dec15


Select the file, L3-NE43A16-094-059-24Dec15-BAND2.tif


Click on Open.

Select the file 24December15 hyphen BAND2 dot tif


Click on Open button.

Point to the image on QGIS window. On QGIS canvas, you will see the raster map of Mumbai region.
Slide Number 11

Summary

Let's summarize.

In this tutorial we have learnt,

  • About GIS
  • Downloaded vector data from Natural Earth dataset
  • Viewed the vector dataset in QGIS.
  • Downloaded raster data from Bhuvan website
  • Viewed the raster dataset in QGIS.
Slide Number 12

Assignment 1

For the assignment-
  • From Natural Earth Data website, download Medium Scale, Physical data for Rivers and Lakes
Slide Number 13

Assignment 2

  • Another popular website to download GIS data is Openstreetmap data website.
Slide Number 14

About Spoken Tutorial project

  • The video at the following link summarizes the Spoken Tutorial project.
  • Please download and watch it.
Slide number 15

Spoken Tutorial workshops

The Spoken Tutorial Project team conducts workshops and gives certificates.


For more details, please write to us.

Slide Number 16:

Forum for specific questions:

Do you have questions in THIS Spoken Tutorial?

Please visit this site

Choose the minute and second where you have the question

Explain your question briefly

Someone from our team will answer them.

Do you have questions in THIS Spoken Tutorial?

Please visit this site.

Choose the minute and second where you have the question.

Explain your question briefly.

Someone from our team will answer them.

Slide Number 17:

Acknowledgement

Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.


More information on this mission is available at this link.

This tutorial is contributed by Prajwal M. from Sahyadri College of Engineering and Snehalatha from IIT Bombay.

Thank you for joining.

Contributors and Content Editors

Nancyvarkey, Snehalathak

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